Two rods of different materials, having coefficients of linear expansion α1 and α2 and Young's moduli Y1 and Y2 respectively, are fixed between two rigid walls. The rods are heated to the same temperature. There is no bending of the rods. If α1:α2=2:3, the thermal stress developed in the two rods will be equal provided Y1:Y2 is equal to

Two rods of different materials, having coefficients of linear expansi

1.	Two rods of different materials, having coefficients of linear expansion α1 and α2 and Young's moduli Y1 and Y2 respectively, are fixed between two rigid walls. The rods are heated to the same temperature. There is no bending of the rods. If α1:α2=2:3, the thermal stress developed in the two rods will be equal provided Y1:Y2 is equal to
Answer» Two rods of different materials, having coefficients of linear expansion $α_{1}$ and $α_{2}$ and Young's moduli $Y_{1}$ and $Y_{2}$ respectively, are fixed between two rigid walls. The rods are heated to the same temperature. There is no bending of the rods. If $α_{1} : α_{2} = 2 : 3$ , the thermal stress developed in the two rods will be equal provided $Y_{1} : Y_{2}$ is equal to

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